170424 головнаUkraine has enough R&D and manufacturing capabilities to boost combat effectiveness of its frontline aircraft units and SAM forces, which is a critical priority in the face of continuing military threat from Russia.

 

 

Since its foundation in 2006, Radionix has been focused on the development of new solutions for upgrading and updating the avionic equipment used on the MiG and Su-series fighter aircraft. Assisted by its international partners, Radionix has developed an upgrade package for the gun-laying radars equipping the Su-27, Su-30, and MiG-29 fighters. The proposed upgrade would provide a 30 percent improvement in the radar’s range and detection performances, and would also improve the probability of success performance of its key subsystems. These solutions later formed the basis of a program aimed to upgrade Ukraine’s Air Force MiG-29 and Su-27 fleets.

 

To deceive and defend
During the ongoing Donbas Anti-Terrorist Operation (ATO), Ukrainian government forces used their frontline and army aircraft capabilities against Russia-backed separatist and terrorist forces. Many of these aircraft were lost to enemy fire conducted with Russian-supplied weapons systems such as the Igla and Verba MANPADS, and most advanced Pantsir SAM and anti-aircraft artillery systems. A significant potential threat to Ukraine’s aircraft comes also from the Buk-M1 and Buk-M2 self-propelled medium-range SAM systems that Russia has deployed in numbers in the Crimean Peninsula and locations adjacent to Ukraine’s border.


In 2012, Radionix offered Ukraine’s Air Force its airborne pod-mounted self-defense jammer designated Omut-K that is intended to protect aircraft from radar-guided AAM and SAM threats. This was later redesigned to produce a more advanced, extended functionality version, the Omut-KM. Its range of capabilities includes interception and analysis of incoming signals from hostile electronic systems; decision-making on adequate countermeasure responses; and spoof jamming of hostile SAM radars and radar-guided missiles operating within its frequency range.


Initially, the frequency range of 8 to 12 GHz was chosen for the Omut-K, but the Omut-KM uses a substantially extended range of frequencies to enable it to counteract SAM threats such as Buk-M1 and Buk-M2. Optionally, the operating frequency range can the extended to include frequencies from 0.8 GHz to 18.0 GHz.

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The Omut-KM airborne jammer has the following key specifications: Main frequency range: 5 to 12 GHz; optional frequency range: 12 to 18 GHz; number of frequencies that can be jammed simultaneously: 20; output at P-1 dB: ≥ 20 W; mass of the pod: 71 kg; dimensions of the pod: 2400 x 370 x 260 mm.


The Omut-25KM variant has been developed specifically for use on the Su-25 fighter aircraft. Structurally, the Omut-25KM consists of two pods mounted on underwing hardpoints of the SU-25, each responsible for guarding its assigned hemisphere (fore or aft). One prototype sample of the equipment has been delivered for full-scale development testing to Azerbaijan’s Armed Forces.


Besides the development of airborne countermeasures self-protection complex, the Radionix company also produced the System of radio electronic protection from anti-radar missiles with passive radio technical guidance, which provides protection from anti-radar missiles of different types.

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Main tactical characteristics and specifications of the system are following:
1. Number of anti-radar missiles deflected from the defended object is unlimited.
2. The range of defended area from anti-radar missiles is not less than 100…150 m from radar.
3. Jamming parameters correspond to defended radio technical system signal parameters.
In order to protect radar from anti-radar missiles attacks, the remote radiators are proposed. Every of them is placed 250…300 meters out of radar position in different directions.
A different radiators (or different groups of 2-3 radiators) operate at the certain time interval defined by the system control equipment and protected radar operating mode, and the other radiators are silent at this time.


Operating radiators create a radio signal field that imitates radiation from the protected system placed in “wrong” place for the missile seeker comparable to the real protected object location. Power of the radiating signals exceeds signals power of this system that are radiated in the radar antenna side lobes direction which are the most probably missile attack directions. Thus these signals deal with homing head of anti-radar missile by garbling the angular location of the protected object. Anti-radar missile is targeted on energy center group (usually 2-3) of operating radiators and radio electronic system.
The protection system equipment can be made in permanent and mobile variants.


Two-man team is required for the protection system maintenance. They ensure protection equipment deployment, its current maintenance (repair), and setting of the off-the-shelf carried-out radiators by non-operated main radiators.


Also Radionix is developing an innovative airborne X-band radar system which it named Esmeralda. The system is being developed with flexible, open-architecture design, exploiting the building-block concept that enables it to be integrated both with SAM weapons and MiG-29 and Su-27 aircraft or other suitable platforms, both currently existing and prospective.


The building-block concept employed for this design enables individual components and modules (such as array assemblies, for example) to be swapped in and out as needed, and the system as a whole to be easily reconfigured to suit specific mission requirements. As at this date, Esmeralda radar is at the prototype development stage.

 

New Goals
Radionix has branched out into a promising technology business such as the development of missile guidance equipment. Among the Company’s latest developments in this domain are two innovative radar guidance units to be known as Onyx (active) and Topaz (passive), which it developed in collaboration with domestic stakeholders.


These are the active radar guidance units. It must be appreciated that current-generation airborne electronic warfare systems have learnt too well how to deal with frequencies up to 18 GHz (this, inter alia, encompasses the frequency range exploited by the RVV-AE, R-77 and other AAM weapons designed by Russia). This has made some of the missile guidance technology engineers opt for the frequency range of 27 GHz to 37 GHz. So Radionix has developed its active radar guidance unit that relies precisely on this millimeter-wave frequency range. These units are designed such as to suit application for both SAM and AAM roles. The two units are designed and built with 60-65 percent electronic parts commonality.


Regarding the missiles that will accommodate these innovative guidance units, it should be noted that Radionix has recently had to shift its focus from the airborne technology domain to the development and production of SAM weapons under export contracts. So these guidance units will initially equip the missiles to be fired from a new SAM launcher that Radionix is developing for an international customer. But the Company is indeed interested that these products should be added also to the military weapons arsenal of Ukraine’s Armed Forces.

 

Serhiy ZGHURETS
Defense Express

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